ESP-WROOM-32 D1 Mini Soldering Assembly Guide

Using this tool, there's no need to balance multiple header rows under the board, or worry about misaligned holes. This design allows for easy and well-aligned soldering of header rows onto ESP32-WROOM D1 Mini boards. The slots on either side can hold up to 2x10 header rows with some clearance to move around. The board presses lightly into the four vertical supports, and constrains the pins into place within the holes. With all of the components stuck together, it's much easier to solder all 40 holes. And when the friction that held everything together makes it difficult to remove your creation, use the convenient holes on the bottom to gently pop the assembly out and load the next one!

Print this flat with no supports, and I recommend a heat-resistant material like PETG or better since it'll live around heat.

I've only used this with some off-brand D1 Minis, but it should also work with Wemos ESP32-WROOM D1 Minis based on an existing CAD.